Patents by Inventor Vikram Chopra
Vikram Chopra has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11845329Abstract: An electric axle assembly includes a drive housing and a drive assembly. The drive assembly is housed in the drive housing and engages with wheels of a vehicle for rotating the wheels to move the vehicle along a ground surface. The drive assembly includes a drive input, one or more gearsets, and axle shafts. The one or more gearsets transfer motive force from the drive input to the axle shafts.Type: GrantFiled: August 2, 2022Date of Patent: December 19, 2023Assignee: Allison Transmission, Inc.Inventors: Vikram Chopra, Christopher G. Baillie, Siva Srinivas Rajeev Mupparti
-
Patent number: 11820216Abstract: An axle assembly for frame rail vehicles is described herein. The axle assembly includes a first axle shaft and a second axle shaft orientated along a first axis of rotation. A first electric machine is orientated along a second axis of rotation and a second electric machine is spaced from the first electric machine and orientated along a third axis of rotation. A differential gear set is disposed about the first axis of rotation and is coupled to and driven by a common gear reduction to transfer rotational torque from the first and second electric machines to the first and second axle shafts. A speed change mechanism is coupled between the common gear reduction and the differential gear set to change the rotational torque transferred to the first and second axle shafts.Type: GrantFiled: May 3, 2022Date of Patent: November 21, 2023Assignee: Allison Transmission, Inc.Inventors: Vikram Chopra, Shaun Mepham, Christopher G. Baillie, Siva Srinivas Rajeev Mupparti
-
Patent number: 11820217Abstract: An axle assembly for frame rail vehicles is described herein. The axle assembly also includes a drive unit housing that includes an interior cavity enclosing first and second electric machines, a common gear reduction, a differential gear set, and a speed change mechanism with the first and second axle shafts partially disposed within the interior cavity and extending out of the drive unit housing. The drive unit housing includes a central cavity, a lower cavity, a first machine cavity, and a second machine cavity. The central cavity includes the common gear reduction and the axis of rotation of the first and second axle shafts. The lower cavity accumulates a volume of gearbox fluid with the speed change mechanism at least partially immersed in the lower cavity. The first machine cavity includes the first electric machine and the second machine cavity includes the second electric machine.Type: GrantFiled: August 2, 2022Date of Patent: November 21, 2023Assignee: Allison Transmission, Inc.Inventors: Christopher G. Baillie, Vikram Chopra, Shaun Mepham, Siva Srinivas Rajeev Mupparti
-
Publication number: 20230344703Abstract: In a network with varying levels of Quality of Service, where a UE connects to an application through a network or network slice whose service characteristics are not well defined to the user or the application provider, poor levels of service may be experienced. This may be attributed to the application being poorly designed, where in fact it is related to the UE and application connecting through a network that is not properly configured for the intended usage. To mitigate these issues, applications and UEs can be provided access, directly or indirectly, to a network configuration environment to allow for a standardized QoS request to be issued to the network entities between the UE and application execution environment.Type: ApplicationFiled: August 11, 2022Publication date: October 26, 2023Applicant: Shabodi Corp.Inventors: Harpreet Geekee, Raghav Kamran, Vikram Chopra
-
Publication number: 20220402344Abstract: An axle assembly for frame rail vehicles is described herein. The axle assembly includes a first axle shaft and a second axle shaft orientated along a first axis of rotation. A first electric machine is orientated along a second axis of rotation and a second electric machine is spaced from the first electric machine and orientated along a third axis of rotation. A differential gear set is disposed about the first axis of rotation and is coupled to and driven by a common gear reduction to transfer rotational torque from the first and second electric machines to the first and second axle shafts. A speed change mechanism is coupled between the common gear reduction and the differential gear set to change the rotational torque transferred to the first and second axle shafts.Type: ApplicationFiled: May 3, 2022Publication date: December 22, 2022Inventors: Vikram CHOPRA, Shaun MEPHAM, Christopher G. BAILLIE, Siva Srinivas Rajeev MUPPARTI
-
Publication number: 20220371436Abstract: An electric axle assembly includes a drive housing and a drive assembly. The drive assembly is housed in the drive housing and engages with wheels of a vehicle for rotating the wheels to move the vehicle along a ground surface. The drive assembly includes a drive input, one or more gearsets, and axle shafts. The one or more gearsets transfer motive force from the drive input to the axle shafts.Type: ApplicationFiled: August 2, 2022Publication date: November 24, 2022Inventors: Vikram CHOPRA, Christopher G. BAILLIE, Siva Srinivas Rajeev MUPPARTI
-
Publication number: 20220363115Abstract: An axle assembly for frame rail vehicles is described herein. The axle assembly also includes a drive unit housing that includes an interior cavity enclosing first and second electric machines, a common gear reduction, a differential gear set, and a speed change mechanism with the first and second axle shafts partially disposed within the interior cavity and extending out of the drive unit housing. The drive unit housing includes a central cavity, a lower cavity, a first machine cavity, and a second machine cavity. The central cavity includes the common gear reduction and the axis of rotation of the first and second axle shafts. The lower cavity accumulates a volume of gearbox fluid with the speed change mechanism at least partially immersed in the lower cavity. The first machine cavity includes the first electric machine and the second machine cavity includes the second electric machine.Type: ApplicationFiled: August 2, 2022Publication date: November 17, 2022Inventors: Christopher G. BAILLIE, Vikram CHOPRA, Shaun MEPHAM, Siva Srinivas Rajeev MUPPARTI
-
Patent number: 11400807Abstract: An electric axle assembly includes a drive housing and a drive assembly. The drive assembly is housed in the drive housing and engages with wheels of a vehicle for rotating the wheels to move the vehicle along a ground surface. The drive assembly includes a drive input, one or more gearsets, and axle shafts. The one or more gearsets transfer motive force from the drive input to the axle shafts.Type: GrantFiled: August 16, 2019Date of Patent: August 2, 2022Assignee: Allison Transmission, Inc.Inventors: Vikram Chopra, Christopher G. Baillie, Siva Srinivas Rajeev Mupparti
-
Patent number: 11400755Abstract: An axle assembly for frame rail vehicles is described herein. The axle assembly also includes a drive unit housing that includes an interior cavity enclosing first and second electric machines, a common gear reduction, a differential gear set, and a speed change mechanism with the first and second axle shafts partially disposed within the interior cavity and extending out of the drive unit housing. The drive unit housing includes a central cavity, a lower cavity, a first machine cavity, and a second machine cavity. The central cavity includes the common gear reduction and the axis of rotation of the first and second axle shafts. The lower cavity accumulates a volume of gearbox fluid with the speed change mechanism at least partially immersed in the lower cavity. The first machine cavity includes the first electric machine and the second machine cavity includes the second electric machine.Type: GrantFiled: February 19, 2019Date of Patent: August 2, 2022Assignee: Allison Transmission, Inc.Inventors: Christopher G. Baillie, Vikram Chopra, Shaun Mepham, Siva Srinivas Rajeev Mupparti
-
Publication number: 20220227219Abstract: An axle assembly for a low floor vehicle is described herein. The axle assembly includes an axle housing and a drive unit for driving a wheel assembly. The drive unit includes an axle shaft, a wheel end assembly, an electric machine, and a transmission unit. The axle shaft extends along an axle centerline axis between a first axle end and a second axle end. The wheel end assembly is coupled to the first axle end. The electric machine is positioned within the axle housing and includes a rotor shaft, a drive pinion coupled to the rotor shaft, and an electric motor for rotating the rotor shaft. The rotor shaft extends along a rotor shaft centerline axis that is orientated parallel to the axle centerline axis. The transmission unit is positioned within the axle housing and is configured to transfer torque from the electric machine to the axle shaft.Type: ApplicationFiled: April 5, 2022Publication date: July 21, 2022Inventors: Vikram CHOPRA, Christopher G. BAILLIE, Shaun MEPHAM
-
Patent number: 11318828Abstract: An axle assembly for frame rail vehicles is described herein. The axle assembly includes a first axle shaft and a second axle shaft orientated along a first axis of rotation. A first electric machine is orientated along a second axis of rotation and a second electric machine is spaced from the first electric machine and orientated along a third axis of rotation. A differential gear set is disposed about the first axis of rotation and is coupled to and driven by a common gear reduction to transfer rotational torque from the first and second electric machines to the first and second axle shafts. A speed change mechanism is coupled between the common gear reduction and the differential gear set to change the rotational torque transferred to the first and second axle shafts.Type: GrantFiled: February 19, 2019Date of Patent: May 3, 2022Assignee: ALLISON TRANSMISSION, INC.Inventors: Vikram Chopra, Shaun Mepham, Christopher G. Baillie, Siva Srinivas Rajeev Mupparti
-
Patent number: 11292332Abstract: An axle assembly for a low floor vehicle is described herein. The axle assembly includes an axle housing and a drive unit for driving a wheel assembly. The drive unit includes an axle shaft, a wheel end assembly, an electric machine, and a transmission unit. The axle shaft extends along an axle centerline axis between a first axle end and a second axle end. The wheel end assembly is coupled to the first axle end. The electric machine is positioned within the axle housing and includes a rotor shaft, a drive pinion coupled to the rotor shaft, and an electric motor for rotating the rotor shaft. The rotor shaft extends along a rotor shaft centerline axis that is orientated parallel to the axle centerline axis. The transmission unit is positioned within the axle housing and is configured to transfer torque from the electric machine to the axle shaft.Type: GrantFiled: July 12, 2018Date of Patent: April 5, 2022Assignee: ALLISON TRANSMISSION, INC.Inventors: Shaun Mepham, Vikram Chopra, Christopher G. Baillie
-
Patent number: 11192448Abstract: An axle assembly for frame rail vehicles is described herein. The axle assembly includes a drive unit that includes a first drive unit assembly, a second drive unit assembly, a first axle shaft, and a second axle shaft. The first drive unit assembly includes a first electric machine, a first output assembly, and a first offset gear reduction assembly. The second drive unit assembly includes a second electric machine, a second output assembly, and a second offset gear reduction assembly. The first electric machine and the second electric machine are orientated in a same direction, and spaced such that the axle centerline axis is positioned between the first electric machine and the second electric machine. The first offset gear reduction assembly is spaced from the second offset gear reduction assembly such that the axle centerline axis is positioned between the first offset gear reduction and the second offset gear reduction.Type: GrantFiled: August 16, 2018Date of Patent: December 7, 2021Assignee: ALLISON TRANSMISSION, INC.Inventors: Shaun Mepham, Christopher G. Baillie, Vikram Chopra
-
Publication number: 20210237566Abstract: An electric axle assembly includes a drive housing and a drive assembly. The drive assembly is housed in the drive housing and engages with wheels of a vehicle for rotating the wheels to move the vehicle along a ground surface. The drive assembly includes a drive input, one or more gearsets, and axle shafts. The one or more gearsets transfer motive force from the drive input to the axle shafts.Type: ApplicationFiled: August 16, 2019Publication date: August 5, 2021Inventors: Vikram CHOPRA, Christopher G. BAILLIE, Siva Srinivas Rajeev MUPPARTI
-
Publication number: 20210129664Abstract: An axle assembly for frame rail vehicles is described herein. The axle assembly includes a drive unit that includes a first drive unit assembly, a second drive unit assembly, a first axle shaft, and a second axle shaft. The first drive unit assembly includes a first electric machine, a first output assembly, and a first offset gear reduction assembly. The second drive unit assembly includes a second electric machine, a second output assembly, and a second offset gear reduction assembly. The first electric machine and the second electric machine are orientated in a same direction, and spaced such that the axle centerline axis is positioned between the first electric machine and the second electric machine. The first offset gear reduction assembly is spaced from the second offset gear reduction assembly such that the axle centerline axis is positioned between the first offset gear reduction and the second offset gear reduction.Type: ApplicationFiled: August 16, 2018Publication date: May 6, 2021Applicant: ALLISON TRANSMISSION, INC.Inventors: Shaun MEPHAM, Christopher G. BAILLIE, Vikram CHOPRA
-
Publication number: 20210086558Abstract: An axle assembly for frame rail vehicles is described herein. The axle assembly also includes a drive unit housing that includes an interior cavity enclosing first and second electric machines, a common gear reduction, a differential gear set, and a speed change mechanism with the first and second axle shafts partially disposed within the interior cavity and extending out of the drive unit housing. The drive unit housing includes a central cavity, a lower cavity, a first machine cavity, and a second machine cavity. The central cavity includes the common gear reduction and the axis of rotation of the first and second axle shafts. The lower cavity accumulates a volume of gearbox fluid with the speed change mechanism at least partially immersed in the lower cavity. The first machine cavity includes the first electric machine and the second machine cavity includes the second electric machine.Type: ApplicationFiled: February 19, 2019Publication date: March 25, 2021Inventors: Christopher G. BAILLIE, Vikram CHOPRA, Shaun MEPHAM, Siva Srinivas Rajeev MUPPARTI
-
Publication number: 20210008969Abstract: An axle assembly for frame rail vehicles is described herein. The axle assembly includes a first axle shaft and a second axle shaft orientated along a first axis of rotation. A first electric machine is orientated along a second axis of rotation and a second electric machine is spaced from the first electric machine and orientated along a third axis of rotation. A differential gear set is disposed about the first axis of rotation and is coupled to and driven by a common gear reduction to transfer rotational torque from the first and second electric machines to the first and second axle shafts. A speed change mechanism is coupled between the common gear reduction and the differential gear set to change the rotational torque transferred to the first and second axle shafts.Type: ApplicationFiled: February 19, 2019Publication date: January 14, 2021Inventors: Vikram CHOPRA, Shaun MEPHAM, Christopher G. BAILLIE, Siva Srinivas Rajeev MUPPARTI
-
Publication number: 20200180426Abstract: An axle assembly for a low floor vehicle is described herein. The axle assembly includes an axle housing and a drive unit for driving a wheel assembly. The drive unit includes an axle shaft, a wheel end assembly, an electric machine, and a transmission unit. The axle shaft extends along an axle centerline axis between a first axle end and a second axle end. The wheel end assembly is coupled to the first axle end. The electric machine is positioned within the axle housing and includes a rotor shaft, a drive pinion coupled to the rotor shaft, and an electric motor for rotating the rotor shaft. The rotor shaft extends along a rotor shaft centerline axis that is orientated parallel to the axle centerline axis. The transmission unit is positioned within the axle housing and is configured to transfer torque from the electric machine to the axle shaft.Type: ApplicationFiled: July 12, 2018Publication date: June 11, 2020Inventors: Vikram CHOPRA, Christopher G. BAILLIE, Shaun MEPHAM
-
Patent number: D883864Type: GrantFiled: May 10, 2018Date of Patent: May 12, 2020Assignee: ALLISON TRANSMISSION, INC.Inventors: Christopher G. Baillie, Shaun Mepham, Vikram Chopra
-
Patent number: D927578Type: GrantFiled: September 27, 2018Date of Patent: August 10, 2021Assignee: ALLISON TRANSMISSION, INC.Inventors: Christopher G. Baillie, Vikram Chopra, Shaun Mepham, Siva Srinivas Rajeev Mupparti, Dan Mircea Stefan, David John Swica